Friction-clutch.



om O 9 1 3 mm. A M D E T E E T A P W A 6 AU 00 00 m FRICTION CLUTCH.

APPLICATION FILED JAN. 15, 1907.

2 SHEETS-SHEET 1.

- EFTVET! Lmt MP2! 711 jfsza'm-tz a E .2 1H i a m i PA-TENTED MAR. s,1908. W. J. HILLIARDV FRIGTION'GLUTC'H. 7

APPLICATION FILED JAN.15,1907, I

2 SHEETS-SHEET 2.

E5525. I v

Zuzmm .jqz zuw.

specification.

andhasifor itsob ect the. construct on of a clutch which will maintainany degree of I-n friction clutches as heretofore constructed theclutching mechanism has to be operated to its maximiun of movement in"order to become fixed in that position, while 'U I i 'it' is desired totighten or' loosen the 7 same, These and other features of my iiisectionof the? same; onthc' line '1 'g in Fig. 4.

' To all whom it may; coax-em:

I --a 'citizen of the United States, residing at Elinira,.in the countyof Chemnng and State of New York, have invented certain new and usefulImprovements in "Friction-Clutches;

tion, such as will enable 0t iersskilled in the lthc same, referencebeing had to the accom- 'panying drawings, and togthe letters of refereltween -the minimum and maximum degrees thereof;

-oil the line :r-':i: in Fig. 1 showing the adjust ing mechanism.

- thereof.

UNITED sTATEsPArEnhoFFioE.

WILLIAM' J. HILLLARD, or ELMIRA, NEW YORK;

- rnro'rIoN-cLU'rcH.

Beit known that I, WiLLiAM J. HiLLiARD,

andI do hereby declare the-following to be a full, clear, and exactdescri' tion of the inven-;

art to which it'appertains to make and use ence n'arked thereon, formingpartlof this My invention relates to friction clutches comfiressioniiponits friction surfaces v bein n invention hereinafter described, the.clutc nng' mechanism has only to be moved.- to a clutching positionwhere, it willzremain Fig. 6 is a section of the same on the line 22 inFig. 4, showing the. adpisting mechanism In these drawingsIA indicatesthe crank Specification of Letters Patent.

Application filed January 15.1907. Serial No. 352.418.

or drive shaft, and A the clutch-case which is rigidly niountedon'theshaft A and revo'lvcs therewith The annular rim A of the, clutchcase Aextends outward on one side of the the inside of said 'iin-areone ormore ribs a i for the purpose hereinafter set forth.

' inside iii the rim A of the clutclecase A is y radial portion of theclutch-case- A, and on l l Upon the end of the'to-hcdriven shalt B irigidly-Secured a disk B 'liaving a friction l surfaccbon one sidethereof. adjacent to its l Patented March 3,-19Q8.

said friction surface 12' on the disk Bfis an annular shoulder or flangeb ,and on the periphery of this annular shoulder b I place one or moreribs 1; for the purpose hereinafter set forth. I then place within therim A of the clutch-case A and adjacent to the Trio tion surface 7) ofthe disk B, a friction ring C having notches c in' the periphery thereofadapted to fit over the ribs (1 on the inside of the clutch-case rim A.-I then :place another friction ring Dupon' the annular shoulder 1) uponthe disk B which ring-D has notches 'd in its inside. edge adapted tofit over' the ribs b? thereon. ljhese rings'C and D maybe ink creased innumber asmay be desired, ,orthey may all be omitted with theexceptioi'iof the first ring-C. The rings C, are, by {means of the ribs (1 on theinside of the" clutch case rim and the notches c-{in the'periphery of:the said rings,- caused to rotataby' the rotation of the clutclicase A,while the rings Dare held 'on-the annular shoulder b againstrotationthereon'by means of the ribs .b on the dperiph ery ofsaid shoulder andthe notches 'on the inside of said rings D.

peripheryh Adjacent to theinside edge of Upon the to-be-Tdrivnshaft B l"lace two.

sleeves, one upon the. otherfwhio sleeves are hereinafter niore'definitely referred to and described; Upon-these sleeves I mountapressure disk'E; which is providedwith a flange E on one'side'thereof,the edge'o'f which is rovidedv with a friction surface E.

The iTlSl( edia neter of the flan e'E' is sufli cient to passfreel overthe vribs'b. on the annular shoulder on the disk Bf. Upon theinsideeriphery of the flange E; Fprovide shoul erse e adapted to engagethe ribs If on the annular flange b of the disk'B so that the flange Eand disk E arecaused to revolve in unison-with the disk B on the shat tB.

'lhe pen end oFthe'clutch-case A 'is pref- V erably e osed with a plateA havinga-central opening A therein for the Bin-nose hereinal'ter setforth.

'lhc several parts ol theclutch embodying ln ill\'0nti()n hereinbeforedescribed -'are common to both forms of my invention illus--' trated inthe drawings accompanying this application. The distinctive features ofthe pointed out asjollows:

in Figs. I and 2 of the drawings the operating mechanism of the clutchconsists of two or more, shafts F provided on the-ends two forms areheninafter fully described and with right hand screw threads F and lefthand screw threads F These ,screw threads F and F operate in suitablenuts F (see Fig. 1 and in dotted lines in Fi 2) said nuts F are securedto the disks B and E by means of screws (see Fig. 1) so that the ends ofthe she ts F between the screwthreaded ends thereof are mounted inbearings in said disks B and- E. Upon the con- 'tral portion of theshafts F are'elongated Upon the shaft B in Fi s. l and pinions F on the2 I place a sleeve G .having a collar "outer end thereof, provided withthe usual groove G. T e inner end of. the sleeve G is provided wi h ascrew-thread G and nuts G 'to hold the sleeve G and the sleeve Hhereinafter described in proper relation -to each other. The sleeve Gsz'provided' with a T s iral slot G3 in which the;stud Bf upon the thesleeve G, and aso for the se of adjusting the distancebetween t e 'ctionsurfaces and E. on the disk B and fla e E In operation when the sleevesG and are forced inward on the shaft B they and the s ur-gear H arecaused to rotate around the s aft B by the'spiral slot G7 and stud B",which causes the pinions F and shafts F to rotate, which rotation causesthe disks B and Eand their frictionsurfaces b and E to approach eachother and contact with the friction rin s C and 4D, and press themtogether, w ich will cause the said clutch mechanism to rotate with theclutch-case A, thereb rotating the shaft B with the shaft A. 11 Figs. 3and 4 this result is obtained by means of a single screw as follows:Upon the shaft B, I mount a sleeve K provided on its outer end with aooved collar K, which sleeve K is provide with a spiral slot K in whichthe stud B secur'ed to the shaft B operates, and upon the periphery ofthe sleeve K I rovide a longitudinal spline k. U on the slieeve K, Imount a sleeve L provi ed on its inner surface with a longitudinalgroove 1 adapted to receive the s line 7: on the sleeve K. The outsideof the s eeve L is rovided with a screw thread approximate y its entirelength, there bein wormteeth Z cut in the extreme outer end of saidsleeve. is secured an adjustable head M, u on which the disk E isrotatably mounts and secured by means of the nut M. The adjust,- ablehead M is secured against rotation upon Upon the outer end' of thesleeve L ism, consisting of a worm m mounted. in suitable hearings onthe outside of the adjustable head M, which worm m intermeshes with theworm teeth on the outer end of the sleeve L, (see Figs. 4 and 6) theoperation of which is similar to the adjusting mechanismshowninFi..1and3.'- a

The disk is provided with an internally screw-threaded socket Nsurrounding the "shaft B, adapted to receive the screw-threaded sleeveL. In operation when the sleeve K is forced inward it causes the sleeveL to revolve around the shaft B and to screw into the socket N, therebydrawing the friction surfaces 11 and E toward each other, as in theconstruction shown in Figs. 1 and 2.

From the foregoin description it is obvious that; while I pre erablyapply the power through the shaft A and clutch case A, it maywithequal-facility be applied through the shaft B and clutch mechanism.

It will also be seen that by means of the constructions herein shown anddescribed I am-enabled'toproduce a clutch which will becomeoperative andfixed at any. point of movement of,-,-the. clutch operating mechanorloosen the saniei w H ving' thusjfully descrilied my invention so as toenable others skilledin the art to consecond clutch member, a frictionsurfacethereon, alongitudin'all movable section on ism,until'it'isdeeired to set the clutch tighter L struct, and o crate thesame, what I claim as said second clutch mem er, a friction surfacethereon, s'crew' mechanism for movin said sections of the second membertowaril and away from the friction surface on the first named clutchmember, and a' sleeve rotatable -with the .'shaft and non-rotatable'withrela tion to, the screw mechanism for operating said screw mechanism,substantially as set forth. e

. 2. The qombination'in a'f'r'iction clutch, of a clutch member fixed toone shaft section, a second clutch'me'mber'fixed' to another shaftsection, a orti'on of whichxsecond clutch member is ongitudinallymovable,- friction surfaces .on said clutch members, screw mechanism insaid second clutch member to bring the'friction surfaces of the'clutchmembers into and out of contact, asleeve rotatable second clutch memberfixed to another shaft the sleeve L by means of adjusting mechan- 1section, a section of whichsecond clutch nfifimeescarriedfby-both ofsaid 'clutch memiiers,-means for adjusting said friction ,euriacesi'with relationto each other, screw mechanismin said second clutch memberto ave the friction surfaces on said secondclutch member into and out ofcontact with the friction surfaces on the first named clutch member, andmeans for operating said screw mechanism; substantially as set forth.

4. The combination in a friction clutch of two clutch members, one ofwhich is secured to a shaft section, an annular rim or shell on one sideof said clutchmember, a friction surface on said clutch member, a secondclutch member mounted on another shaft section, a movable section onsaid second clutch member, friction surfaces on the parts of said secondclhitc-h member, screw mechanism connectin ,jt-ii e first and secondsections of the secon member to brin the friction surfaces thereon intoand out 0 contact with the friction surface on the first named clutchmember, and means for operating said screw mechanism, substantially asset forth.

5. The combination in a friction clutchof two ciutch members,one ofwhich is secured" to a shaft section, an annular rim or shell oncne'side cf, said clutch membenafriction surateo'n'said clutchmemben'asecond clutch member mounted on another shaft section,

a movable section on said second clutch memher', i'riction surfaces onsaid second; I

the friction nngs'on the first c clutch member adapted to contact withthe frictionsurf'ace on the first named'clutchv member, means connectingthe fixed and movable parts of the second clutch member so they willrotate in unison,'screw mecham ism connecting the fixed and movableparts of the second clutch member to move ,the friction surfaces thereoninto and out of con-o tact with the friction surface of the first. namedclutch member, a sliding sleeve hav-.

ing a diagonal slot therein .on the second shart section, a stud on saidshaft-sectionengaging said slot, means for connecting said sleeve withthe movable parts ,o 'said second clutch. member, and meansfoi' slidingsaid 1 t ialiy as set forth.

sleeve longitudinally on the shaft, substan- 6 The combination in afriction clutch, of a member secured to a shaft-section,

.dinally on the shaft;

an overhanging flan e or rim thereon, s lines on the inner face 0 saidflange, radia fric-.

said second member, friction rings mounted thereon so as to be broughtinto contact with to the friction rings on the first named clutc member;a longitudinally movable section mounted on the secondgclutch member, afriction surface thereonto contact with the opposite side of thefric'tion rings on the first c5 clutch member, screw mechanism to movethe movable section of the second clutch member toward and away from thefixed section thereof, and means for operating said screw mechanism,substantially as set forth. 7 0

7. ,The' combination in a friction clutch, of a clutch member securedtoe shaft-section, an overhanging flange or rim thereon, longitudinal--sphnes on the inner face of said flange," radial friction rings engagingsaid splines, a second clutch member, a friction surface thereon toengage one side of one of the friction rings in the first named clutchmember, longitudinal splines on said second fmember, friction ringsmounted thereon so as to he brought into contact with the trio'- tionrings on the first (clutch member, a lon f gitudinally movable sectionmounted on the second clutch member, a friction surface thereon} tocontact with the ofiposite side of,

I utch member, screw mechanism to move. the movablesection of the se ndclutch member toward and away fr 1n the figred section thereof, 1 a.

di 'onaL-slot therein and slidabl on the, she the movable part-of thesecond cliitcli memben-for actuating the'flscrew. mechahismfaa stud onthe sleeve-worm Said! sleeve, .95

shaft engaging the slot in said gear mechanism for'iadjust' and meansfor imovinglsaid "s eeve longitu-' ubstantially as set:

forth.

In testimonywheredflfailizr my signature, in presence of two witnesses;T

Witnesses: H. M. Srunehom,

- e e- Bee-an

